Finding the Fourth Proportional to 7,678.63, 10,596.55 and 4,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,678.63 : 10,596.55 = 4,321.50 : x
2. Step 2: Convert to fraction form
   7,678.63/10,596.55 = 4,321.50/x
3. Step 3: Cross multiply
   7,678.63x = 10,596.55 × 4,321.50
4. Step 4: Simplify right side
   7,678.63x = 45,792,990.83
5. Step 5: Solve for x
   x = 45,792,990.83/7,678.63
6. Step 6: Final answer
   x = 5,963.69